[missjane]

No, I completely get what hazel is saying. For a deadlift, the bar should be on the floor AT THE HEIGHT IT WOULD BE AT IF 45 LB PLATES were on the bar. So, if one is only using 5 lb plates, then using the safety bars in a squat rack will raise the bar to the height it needs to be as IF 45 lb plates were on the bar.

You do NOT want to deadlift from the floor with 5 lb weights on the bar. You can, but you will be doing a deficit deadlift.

ETA: Hazel, see the deadlift thread in the FAQ and watch the video. You will see how the girls raised the bar to the appropriate height using the step risers.